• Title/Summary/Keyword: Feeding Level

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More about Taxonomic Sufficiency: A Case Study using Polychaete Communities in a Subtropical Bay Moderately Affected by Urban Sewage

  • Muniz Pablo;Pires-Vanin Ana M. S.
    • Ocean Science Journal
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    • v.40 no.3
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    • pp.127-143
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    • 2005
  • The taxonomic sufficiency approach has been proposed as a surrogate for the typical analysis of species-abundance data, especially in conditions involving prominent pollution gradients. Here, we evaluate the use of taxonomic sufficiency with infralittoral macrobenthic data derived from samples taken in a moderate polluted subtropical environment in southeastern Brazil, analysing five taxonomic levels and including two functional levels throughout polychaete feeding guilds and trophic groups. The data were collected seasonally at nine stations and studied for two abundance data series (0.5 and 1.0 mm sieve mesh-size). The results showed a similar ordination pattern between the two sieve mesh-size, but with the 0.5 mm sieve data a different pattern was observed during austral summer. A slight loss of information was detected using genus, family, polychaete species and their feeding guilds as taxonomic/functional units. These results together with those of the cost! benefit ratio, suggested that the family level seemed to be sufficient to detect the impact caused by moderate pollution in this shallow-water, subtropical environment. In additional, through the use of feeding guilds, similar patterns are obtained. Correlation analysis showed that chlorophyll a, total organic matter, zinc, and chromium sediment content were the variables that best explained the biological pattern observed and not always the best correlation coefficient occurring at the species level. The feeding guild approach seems to be useful and generates interpretable results similar to those obtained with the species level of the whole macroinfauna. The results showed an important cost reduction in the sample processing, suggesting that it is possible to adopt a coarser taxonomic level monitoring program even in species-rich communities.

The Effect of Parent Education on Feeding Problems in Children With Autism Spectrum Disorder: A Systematic Review (자폐 스펙트럼 장애 아동의 섭식 문제를 위한 부모교육의 효과: 체계적 고찰)

  • Choi, Yeon-Woo;Kim, Kyeong-Mi
    • The Journal of Korean Academy of Sensory Integration
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    • v.18 no.3
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    • pp.39-52
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    • 2020
  • Objective : The purpose of this study was to investigate the effect of parent education on feeding problems in children with autism spectrum disorder. Method : Articles published between 2000 and May 2019 were identified through a database search of Cochrane Library, Embase, Ovid-Medline, and PubMed as well as through additional manual searches. A total of six articles were selected and qualitatively analyzed according to the level of evidence of the study and arranged according to PICO (Patient, Intervention, Comparison, Outcome). Results : Six articles were used for the data analysis; four articles were at evidence level 1 and two articles were at evidence level 3. Behavioral therapy was the most common interventional approach to parent education, and all of the articles based on behavioral therapy had evidence level 1. Conclusion : This study examines the various ways of parenting to help families with autism spectrum children with feeding problems in order to find directions for parent education that can be applied in clinical practice.

A Study on the Changes of Some Components and Growth Rate of Rats by Feeding of Rice Diet Supplemented with Ginseng Powder (인삼분(人蔘粉) 첨가급식(添加給食)이 동물(動物)의 성장(成長) 및 장기중(臟器中) 성분함양(成分含量)에 미치는 영향)

  • Park, Chan-Shim;Kim, Sang-Soon;Hwang, Woo-Ik
    • Journal of Nutrition and Health
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    • v.10 no.3
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    • pp.33-47
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    • 1977
  • This study was devised to observe the nutritional effect by feeding of rice diet supplemented with Ginseng powder in Albino rats. The male albino rats (84 heads), weghing about 56g, were used for the experimental animals. They were divided into six diet groups; which were the 6.4% protein diet, the 12.8% protein diet and the 17.9% protein diet as the control and each control diet was supplemented with 3% of Korean Ginseng powder as experimental diet. These diet groups were again divided into 2 groups according to the feeding terms, 3 weeks and 6 weeks. The animals were sacrificed after feeding the coresponding diet for 3 weeks and 6 weeks and the liver, heart, kidney, intestine and serum were collected as samples for analysis. The growth rate, efficiencies of protein and food, lipid, cholesterol and nitrogen in the samples were determined. The results obtained are summerized as follows; 1. The growth rate were improved by feeding of the 13% and the 18% protein diet supplemented with 3% ginseng powder than the coresponding control diet group, although the same results were not observed in the 6.8% protein diet groups. 2. The consumptions of the food and the protein in each dietary group were similar to each other. 3. The efficiencies of the food and the protein were improved by feeding of the 13% and the 18% protein diet supplemented with the ginseng powder than each control diet group. 4. The lipid contents in the liver of each expperimental diet group, in the feeding for 3 weeks, were shown the tendency to increase slightly, compared with the coresponding control group, whereas in the feeding group for 6 weeks, the contents were shown rater the decreasing tendency. 5. The total cholesterol contents in the liver of each experimental diet group, in the feeding group for 3 weeks, were maintained slightly higher level than the coresponding control group, whereas in the feeding group for 6 weeks, the contents were shown similar levels. 6. The total cholesterol contents in the heart were maintained with similar level in each diet group and each feeding term.

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Feed Intake Evaluation of Korean Cattle (Hanwoo) Fed Diets Containing Different Levels of Compound Fattening Periods (한우의 육성 및 비육기간중 배합사료 급여 수준에 따른 사료섭취량 조사)

  • Shin, K.J.;Oh, Y.G.;Lee, S.S.;Kim, K.H.;Kim, C.H.;Paik, B.H.
    • Journal of Animal Science and Technology
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    • v.44 no.1
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    • pp.95-104
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    • 2002
  • A study was conducted to evaluate feed intake of Hanwoo bulls and steers fed diets of compound feed and rice straw. Twenty bull calves and sixty steers at 5 to 7 months old were used. The experimental period was divided into three feeding stages which are growing period (〈300 kg body weight (BW)), early fattening period (300-450 kg BW) and late fattening period (〉450 kg BW). The animals were given the diets containing 14.1% crude protein (CP) and 70.0% total digestible nutrients (TDN) in the growing period, 12.1% CP and 70.6% TDN in the early fattening period, and 11.2% CP and 71.9% TDN in the late fattening period, respectively. Experiment 1 was designed to compare feed intake (as-fed basis) between Hanwoo bulls and steers fed the experimental diets ad libitum. In Experiment 2, Hanwoo steers were allocated in one of three compound feed feeding treatments to investigate feed intake (as-fed basis). The treatment groups were ① feeding level 1 group fed compound feed ad libitum through the whole periods; ② feeding level 2 group fed 1.0% compound feed per kg BW in the growing period, 1.5% compound feed per kg BW in the early fattening period and compound feed ad libitum in the late fattening period; and ③ feeding level 3 group fed 1.5% compound feed per kg BW in the growing period, 2.0% compound feed per kg BW in the early fattening period and compound feed ad libitum in the late fattening period. In Experiment 1, the average daily feed intake of bulls increased linearly through the whole experimental period while the feed intake of steers increased until their body weight was reached upto 521 kg, afterward reduced. Average daily feed intake was about 3.5% per kg BW of both bulls and steers at the beginning (150 kg BW) of Experiment 1 while bulls and steers at 600 kg BW consumed the diets of 2.0 and 1.5% per kg BW, respectively. In Experiment 2, the average daily feed intake of steers in the feeding level 1 group gradually increased through the growing and early fattening periods and then steadily reduced over the late fattening period. The average daily feed intake in the feeding level 2 group linearly increased through the whole period while the feed intake in the feeding level 3 group showed a relatively rapid increase and reached a peak at 455 kg BW, and then sharply dropped. The average daily feed intake of steers in the feeding level 1 at the beginning (150 kg BW) of Experiment 2 was about 3.5% per kg BW but there was a reduction (1.5% per kg BW) at 600 kg BW. Besides, The feed intake of steers in the feeding level 2 and 3 in which compound feed was given with limitation increased to 2.0-3.0% per kg BW in the growing period and then reduced to 1.5-2.0% per kg BW. The limited compound feed feeding of steers in Experiment 2 resulted in higher rice straw intakes up to two to three folds and two folds in the growing and early fattening periods, respectively, than the ad libitum feeding.

EFFECT OF TIME AFTER FEEDING ON DISTRIBUTION OF FEED PARTICLES IN THE GASTROINTESTINAL TRACT OF SHEEP GIVEN ORCHADGRASS HAY ONCE A DAY

  • Sekine, J.;Imaki, Y.;Kuninishi, Y.;Oura, R.;Miyazaki, H.;Okamoto, M.;Asahida, Y.
    • Asian-Australasian Journal of Animal Sciences
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    • v.5 no.1
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    • pp.55-61
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    • 1992
  • To determine the effect of time after feeding on distribution of particle size of digesta in the gastrointestinal tract, 16 sheep given orchardgrass first cut hay were slaughtered at 2, 8, 16 and 24 hours after feeding and digesta in diverse sites of the tract were sieved into four fractions of particle size larger than $1180{\mu}m$, 300-1180, 45-300 and less than 45. Following results were obtained: 1) In the reticulo-rumen, the proportion of particles larger than $1180{\mu}m$ decreased with the time after feeding, while the other particle size fractions did not change with time after feeding. 2) In the post-ruminal alimentary tract, the proportion of particles larger than $1180{\mu}m$ was significantly smaller than that in the reticulo-rumen and distribution of fractions of every particle size stayed consistently at about the same level irrespective of the time after feeding. 3) In the cecum, the fraction of particle size less than $45{\mu}m$ appeared to be selectively retained when the passage rate was considered.

Effects of feeding of dried Euglena rubra on Nile tilapia Oreochromis niloticus (빨간유글레나, Euglena rubra 건조분말의 사료첨가에 따른 나일틸라피아, Oreochromis niloticus에서의 영향)

  • Lee, Jae-Geun;Lee, Han-Na;Kim, Young-Dae;Choi, Sang-Hoon;Park, Kwan-Ha
    • Journal of fish pathology
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    • v.24 no.3
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    • pp.307-313
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    • 2011
  • To examine the effects of Euglena rubra (E. rubra) feeding on Nile tiapia, Oreochromis niloticus were fed diets containing dried powder of E. rubra at 0.5 or 2% for 4 weeks. Growth, selected hematological and non-specific immune parameters were assessed at 2 and 4 weeks. There were no significant changes in body weigh gain and erythrocyte levels. However a significant and diet E. rubra level-related decrease in leukocyte level was noted. Significant increases were observed in respiratory burst activity (nitroblue tetrazolium reduction) and lysozyme activities following E. rubra feeding. These results indicate that E. rubra could be beneficial to fish, but excess feeding could toxic.

A Study on the Incidence of Diarrhea According to the Density of Nutrients Formulations in Nasogastric Tube-feeding Patients (비위관영양환자의 영양물 농도가 설사유발정도에 미치는 효과)

  • Park, Mi-Suk;Kim, Joo-Hyun;Kwak, Chan-Yeong
    • Journal of Korean Biological Nursing Science
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    • v.10 no.2
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    • pp.105-112
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    • 2008
  • Purpose: The purpose of this study was to investigate the difference in the incidence of diarrhea among the subjects given hypertonic and isotonic nutrients to the nasogastric tube feeding patients in the a critical care setting. Methods: This study is aquasi-experimental study with a pre & post-test design. The sample size of 40 was calculated based on Cohen's formula (1988). The total of 40 subjects who signed the informed consent were randomly selected and divided evenly into two groups, experimental and control group. Results: There are no significant differences between the two groups in homogeneity test (sex, age, albumin level, the use of antibiotics, antacid, and $H_2$ blocker). However, the frequencies of occurrence in diarrhea according to the density of nutrients formulation indicated a statistical difference at the level of .005 (p=.001): diarrhea occurred in four of 20 (20%) of the experiment group, but 14 (70%) of the control group. Also the onset date of diarrhea in the experiment group is later than that of the control group. Conclusion: The research findings suggest that we should begin with low density nutrients for nasogastric tube feeding, and increase its density gradually to decrease diarrhea incidence in the critical care setting.

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Studies on Milk Allantoin and Uric Acid in Relation to Feeding Regimens and Production Performance in Buffaloes

  • Sikka, P.;Saxena, N.K.;Gupta, R.;Sethi, R.K.;Lall, D.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.11
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    • pp.1634-1637
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    • 2001
  • Allantoin and uric acid were estimated in milk to study the association between the levels of these purine derivatives and milk production per day under given feeding regimens. Keeping the stage of lactation, parity and initial milk yield in view thirty lactating buffaloes were randomly selected from early lactating group. All the animals were fed 30 kg green, 2 kg straw and 5 kg concentrate mixture on per animal/day basis at basal level up to 8 1 produce. 1 kg concentrate mixture, soaked cotton seed and boiled cotton seed was fed for every 2 I milk, respectively in Group I (control), Group II and Group III animals. Average milk Allantoin and Uric acid levels were $120{\pm}11.7g/ml$ and $4.03{\pm}0.63g/ml$, respectively in milk. Cotton seed feeding enhanced the milk production significantly (p<0.01) in comparison to concentrate mixture fed control group animals. A significant difference (p<0.01) in milk allantoin levels was found over the different feeding management at higher level of production group animals. Study also revealed a significant negative correlation between the milk allantoin and production per day r=-0.43 (p<0.05).

NUTRITIVE VALUE OF NAPIER GRASS (PENNISETUM PURPUREUM SCHUM.) SILAGE ENSILED WITH MOLASSES BY GOATS

  • Yokota, H.;Okajima, T.;Ohshima, M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.5 no.1
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    • pp.33-37
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    • 1992
  • Napier grass (Pennisetum purpureum Schum.) harvested at an early growth stage was ensiled with 4% of molasses in a polyethylene bag silo which contained 15 kg of chopped forage each. Dry matter (DM) content of the silage was so low as 14.75%, although chemical quality of the silage was very high. Ratio of ammonia nitrogen to total nitrogen was 6.59%, and the pH value of the silage was 3.79. Nutritive value of the silage was estimated using goats and compared to that of a timothy hay as a reference ration. Feeding level of each rations was adjusted to a level of nitrogen (N) recommendation. DM and N digestibilities of the silage were 65.0 and 54.5%, respectively, but those of the timothy hay were 37.6 and 37.2%. Feeding of the napier grass silage maintained body weight and kept positive N retention. Ammonia N concentration in the rumen fluid in goats fed the napier grass silage increased after feeding, but blood urea concentration was constant. Feeding of the timothy hay did not increase ammonia N concentration in the rumen fluid, but increased blood urea concentration. These facts indicated that the napier grass silage had enough digestible DM and N for maintenance ration to goats.

Effects of Extracts of Houttuynia cordata Thunb on the Level of Lipids and Lipid Peroxidation in the Liver and Serum of Cholesterol-fed Rats (어성초추출물투여가 흰쥐의 간장과 혈청의 지질 및 과산화지질함량에미치는 효과)

  • 최용순
    • Korean Journal of Plant Resources
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    • v.11 no.2
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    • pp.173-178
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    • 1998
  • The feeding effects of Herba hottuynia extracts on the lipids profiles and the content of TAB-reactive substances were evaluated in rats fed a high cholesterol diet. Hot water or ethanol extracts of the dried leave were evaporated and lyophilized . The experimental animals wer edevided to four groups and fed the following diets for 4 weeks : BAsal (cholesterol-free diet), CHOL(cholesterol-enriched diet),CW (cholesterol plus water extract) and CE(cholesterol plus ethanol extract). Dietary cholesterol increased significantly the activities of serum GOT and GPT, but the extracts feeding (0.5% of diet) did not influence the activities induced by dietary cholesterol. Although dietary cholesterol increased significantly the concentrationof serum andliver cholesterol, it tended to decrease the concentation of serum triglycerides. CHolesterol feeding had a lowering effect on the lipid peroxidation value of serum, but not inliver.Furthermore, the extracts feeding, especially water extract, decreased markedly the liver peroxidation value. The results suggest that Houttyunia cordata extracts have an in vivo antioxidant effect, judged from the TBA value in the liver rats fed a high cholesterol diet.

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